我是 Java GUI 构建中的 spring 布局的新手，但如果我想以我想要的方式布局我的 GUI，似乎使用 spring 布局是唯一的方法。
我遇到的问题是，当我在我的JFrame. 但是当我将 resizeable 设置为 true 时，一切都按照我想要的方式完美排列。我知道 1 或 2 个像素并没有相差太多，但这足以让我的 GUI 看起来很奇怪，因为某些文本框比其他文本框大 1 或 2 个像素。这是我的弹簧布局的代码：
pnlTop.setLayout(layout);
lblClosetLoc.setText("Closet location:");
lblPhone1.setText("Phone 1:");
lblJackPaired.setText("Jack paired:");
lblPhone2.setText("Phone 2:");
lblCubicle.setText("Cubicle:");
lblJackType.setText("Jack type:");
lblName.setText("Name:");
lblPhoneJack1.setText("Phone jack 1:");
lblPhoneJack2.setText("Phone jack 2:");
lblDataJack1.setText("Data jack 1:");
lblDataJack2.setText("Data jack 2:");
lblComments.setText("Comments:");
txtClosetLoc.setEditable(false);
txtClosetLoc.setText("");
txtPhone1.setEditable(false);
txtPhone1.setText("");
txtJackPaired.setEditable(false);
txtJackPaired.setText("");
txtPhone2.setEditable(false);
txtPhone2.setText("");
txtCubicle.setEditable(false);
txtCubicle.setText("");
txtJackType.setEditable(false);
txtJackType.setText("");
txtFname.setEditable(false);
txtFname.setText("");
txtLname.setEditable(false);
txtLname.setText("");
txtPhoneJack1.setEditable(false);
txtPhoneJack1.setText("");
txtPhoneJack2.setEditable(false);
txtPhoneJack2.setText("");
txtDataJack1.setEditable(false);
txtDataJack1.setText("");
txtDataJack2.setEditable(false);
txtDataJack2.setText("");
txtComments.setEditable(false);
txtComments.setText("");
pnlTop.add(lblClosetLoc);
pnlTop.add(txtClosetLoc);
pnlTop.add(lblPhone1);
pnlTop.add(txtPhone1);
pnlTop.add(lblJackPaired);
pnlTop.add(txtJackPaired);
pnlTop.add(lblPhone2);
pnlTop.add(txtPhone2);
pnlTop.add(lblCubicle);
pnlTop.add(txtCubicle);
pnlTop.add(lblJackType);
pnlTop.add(txtJackType);
pnlTop.add(lblName);
pnlTop.add(txtFname);
pnlTop.add(txtLname);
pnlTop.add(lblPhoneJack1);
pnlTop.add(lblPhoneJack2);
pnlTop.add(lblDataJack1);
pnlTop.add(lblDataJack2);
pnlTop.add(lblComments);
pnlTop.add(txtPhoneJack1);
pnlTop.add(txtPhoneJack2);
pnlTop.add(txtDataJack1);
pnlTop.add(txtDataJack2);
pnlTop.add(txtComments);
layout.putConstraint(layout.WEST, lblClosetLoc, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblClosetLoc, 1, layout.NORTH, txtClosetLoc);
layout.putConstraint(layout.WEST, txtClosetLoc, 5, layout.EAST, lblClosetLoc);
layout.putConstraint(layout.NORTH, txtClosetLoc, 5, layout.NORTH, pnlTop);
layout.putConstraint(layout.WEST, lblPhone1, 0, layout.WEST, lblPhone2);
layout.putConstraint(layout.NORTH, lblPhone1, 1, layout.NORTH, txtPhone1);
layout.putConstraint(layout.WEST, txtPhone1, 0, layout.WEST, txtPhone2);
layout.putConstraint(layout.NORTH, txtPhone1, 0, layout.NORTH, txtClosetLoc);
layout.putConstraint(layout.WEST, lblJackPaired, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblJackPaired, 1, layout.NORTH, txtJackPaired);
layout.putConstraint(layout.WEST, txtJackPaired, 22, layout.EAST, lblJackPaired);
layout.putConstraint(layout.NORTH, txtJackPaired, 5, layout.SOUTH, txtClosetLoc);
layout.putConstraint(layout.WEST, lblPhone2, 0, layout.WEST, lblJackType);
layout.putConstraint(layout.NORTH, lblPhone2, 1, layout.NORTH, txtPhone2);
layout.putConstraint(layout.WEST, txtPhone2, 0, layout.WEST, txtJackType);
layout.putConstraint(layout.NORTH, txtPhone2, 0, layout.NORTH, txtJackPaired);
layout.putConstraint(layout.WEST, lblCubicle, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblCubicle, 1, layout.NORTH, txtCubicle);
layout.putConstraint(layout.WEST, txtCubicle, 47, layout.EAST, lblCubicle);
layout.putConstraint(layout.NORTH, txtCubicle, 5, layout.SOUTH, txtJackPaired);
layout.putConstraint(layout.WEST, lblJackType, 83, layout.EAST, txtCubicle);
layout.putConstraint(layout.NORTH, lblJackType, 1, layout.NORTH, txtJackType);
layout.putConstraint(layout.WEST, txtJackType, 0, layout.WEST, txtDataJack1);
layout.putConstraint(layout.NORTH, txtJackType, 0, layout.NORTH, txtCubicle);
layout.putConstraint(layout.WEST, lblName, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblName, 1, layout.NORTH, txtFname);
layout.putConstraint(layout.WEST, txtFname, 56, layout.EAST, lblName);
layout.putConstraint(layout.NORTH, txtFname, 5, layout.SOUTH, txtCubicle);
layout.putConstraint(layout.WEST, txtLname, 5, layout.EAST, txtFname);
layout.putConstraint(layout.NORTH, txtLname, 5, layout.SOUTH, txtCubicle);
layout.putConstraint(layout.WEST, txtPhoneJack1, 0, layout.WEST, txtFname);
layout.putConstraint(layout.NORTH, txtPhoneJack1, 5, layout.SOUTH, txtFname);
layout.putConstraint(layout.WEST, txtPhoneJack2, 0, layout.WEST, txtPhoneJack1);
layout.putConstraint(layout.NORTH, txtPhoneJack2, 5, layout.SOUTH, txtPhoneJack1);
layout.putConstraint(layout.WEST, txtComments, 0, layout.WEST, txtPhoneJack2);
layout.putConstraint(layout.NORTH, txtComments, 5, layout.SOUTH, txtPhoneJack2);
layout.putConstraint(layout.WEST, txtDataJack1, 0, layout.WEST, txtDataJack2);
layout.putConstraint(layout.NORTH, txtDataJack1, 5, layout.SOUTH, txtLname);
layout.putConstraint(layout.WEST, lblPhoneJack1, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblPhoneJack1, 1, layout.NORTH, txtPhoneJack1);
layout.putConstraint(layout.WEST, txtDataJack2, 5, layout.EAST, lblDataJack2);
layout.putConstraint(layout.NORTH, txtDataJack2, 5, layout.SOUTH, txtDataJack1);
layout.putConstraint(layout.WEST, lblPhoneJack2, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblPhoneJack2, 1, layout.NORTH, txtPhoneJack2);
layout.putConstraint(layout.WEST, lblDataJack1, 0, layout.WEST, lblJackType);
layout.putConstraint(layout.NORTH, lblDataJack1, 1, layout.NORTH, txtDataJack1);
layout.putConstraint(layout.WEST, lblDataJack2, 0, layout.WEST, lblDataJack1);
layout.putConstraint(layout.NORTH, lblDataJack2, 1, layout.NORTH, txtDataJack2);
layout.putConstraint(layout.WEST, lblComments, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblComments, 1, layout.NORTH, txtComments);
layout.putConstraint(layout.EAST, pnlTop, 5, layout.EAST, txtDataJack2);
layout.putConstraint(layout.SOUTH, pnlTop, 5, layout.SOUTH, txtComments);
SSCCE：
启动类：
public class test1 {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MainFrame mFrame = new MainFrame();
mFrame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
主框架：
public class MainFrame extends JFrame {
public MainFrame() {
setupFrame();
}
private void setupFrame() {
SpringLayout layout = new SpringLayout();
pnlMainCenter.setLayout(new BoxLayout(pnlMainCenter, BoxLayout.Y_AXIS));
//Top part of the main panel
//Information to be displayed
pnlTop.setLayout(layout);
lblClosetLoc.setText("Closet location:");
lblPhone1.setText("Phone 1:");
lblJackPaired.setText("Jack paired:");
lblPhone2.setText("Phone 2:");
lblCubicle.setText("Cubicle:");
lblJackType.setText("Jack type:");
lblName.setText("Name:");
lblPhoneJack1.setText("Phone jack 1:");
lblPhoneJack2.setText("Phone jack 2:");
lblDataJack1.setText("Data jack 1:");
lblDataJack2.setText("Data jack 2:");
lblComments.setText("Comments:");
txtClosetLoc.setEditable(false);
txtClosetLoc.setText("");
txtPhone1.setEditable(false);
txtPhone1.setText("");
txtJackPaired.setEditable(false);
txtJackPaired.setText("");
txtPhone2.setEditable(false);
txtPhone2.setText("");
txtCubicle.setEditable(false);
txtCubicle.setText("");
txtJackType.setEditable(false);
txtJackType.setText("");
txtFname.setEditable(false);
txtFname.setText("");
txtLname.setEditable(false);
txtLname.setText("");
txtPhoneJack1.setEditable(false);
txtPhoneJack1.setText("");
txtPhoneJack2.setEditable(false);
txtPhoneJack2.setText("");
txtDataJack1.setEditable(false);
txtDataJack1.setText("");
txtDataJack2.setEditable(false);
txtDataJack2.setText("");
txtComments.setEditable(false);
txtComments.setText("");
pnlTop.add(lblClosetLoc);
pnlTop.add(txtClosetLoc);
pnlTop.add(lblPhone1);
pnlTop.add(txtPhone1);
pnlTop.add(lblJackPaired);
pnlTop.add(txtJackPaired);
pnlTop.add(lblPhone2);
pnlTop.add(txtPhone2);
pnlTop.add(lblCubicle);
pnlTop.add(txtCubicle);
pnlTop.add(lblJackType);
pnlTop.add(txtJackType);
pnlTop.add(lblName);
pnlTop.add(txtFname);
pnlTop.add(txtLname);
pnlTop.add(lblPhoneJack1);
pnlTop.add(lblPhoneJack2);
pnlTop.add(lblDataJack1);
pnlTop.add(lblDataJack2);
pnlTop.add(lblComments);
pnlTop.add(txtPhoneJack1);
pnlTop.add(txtPhoneJack2);
pnlTop.add(txtDataJack1);
pnlTop.add(txtDataJack2);
pnlTop.add(txtComments);
layout.putConstraint(layout.WEST, lblClosetLoc, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblClosetLoc, 1, layout.NORTH, txtClosetLoc);
layout.putConstraint(layout.WEST, txtClosetLoc, 5, layout.EAST, lblClosetLoc);
layout.putConstraint(layout.NORTH, txtClosetLoc, 5, layout.NORTH, pnlTop);
layout.putConstraint(layout.WEST, lblPhone1, 0, layout.WEST, lblPhone2);
layout.putConstraint(layout.NORTH, lblPhone1, 1, layout.NORTH, txtPhone1);
layout.putConstraint(layout.WEST, txtPhone1, 0, layout.WEST, txtPhone2);
layout.putConstraint(layout.NORTH, txtPhone1, 0, layout.NORTH, txtClosetLoc);
layout.putConstraint(layout.WEST, lblJackPaired, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblJackPaired, 1, layout.NORTH, txtJackPaired);
layout.putConstraint(layout.WEST, txtJackPaired, 22, layout.EAST, lblJackPaired);
layout.putConstraint(layout.NORTH, txtJackPaired, 5, layout.SOUTH, txtClosetLoc);
layout.putConstraint(layout.WEST, lblPhone2, 0, layout.WEST, lblJackType);
layout.putConstraint(layout.NORTH, lblPhone2, 1, layout.NORTH, txtPhone2);
layout.putConstraint(layout.WEST, txtPhone2, 0, layout.WEST, txtJackType);
layout.putConstraint(layout.NORTH, txtPhone2, 0, layout.NORTH, txtJackPaired);
layout.putConstraint(layout.WEST, lblCubicle, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblCubicle, 1, layout.NORTH, txtCubicle);
layout.putConstraint(layout.WEST, txtCubicle, 47, layout.EAST, lblCubicle);
layout.putConstraint(layout.NORTH, txtCubicle, 5, layout.SOUTH, txtJackPaired);
layout.putConstraint(layout.WEST, lblJackType, 83, layout.EAST, txtCubicle);
layout.putConstraint(layout.NORTH, lblJackType, 1, layout.NORTH, txtJackType);
layout.putConstraint(layout.WEST, txtJackType, 0, layout.WEST, txtDataJack1);
layout.putConstraint(layout.NORTH, txtJackType, 0, layout.NORTH, txtCubicle);
layout.putConstraint(layout.WEST, lblName, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblName, 1, layout.NORTH, txtFname);
layout.putConstraint(layout.WEST, txtFname, 56, layout.EAST, lblName);
layout.putConstraint(layout.NORTH, txtFname, 5, layout.SOUTH, txtCubicle);
layout.putConstraint(layout.WEST, txtLname, 5, layout.EAST, txtFname);
layout.putConstraint(layout.NORTH, txtLname, 5, layout.SOUTH, txtCubicle);
layout.putConstraint(layout.WEST, txtPhoneJack1, 0, layout.WEST, txtFname);
layout.putConstraint(layout.NORTH, txtPhoneJack1, 5, layout.SOUTH, txtFname);
layout.putConstraint(layout.WEST, txtPhoneJack2, 0, layout.WEST, txtPhoneJack1);
layout.putConstraint(layout.NORTH, txtPhoneJack2, 5, layout.SOUTH, txtPhoneJack1);
layout.putConstraint(layout.WEST, txtComments, 0, layout.WEST, txtPhoneJack2);
layout.putConstraint(layout.NORTH, txtComments, 5, layout.SOUTH, txtPhoneJack2);
layout.putConstraint(layout.WEST, txtDataJack1, 0, layout.WEST, txtDataJack2);
layout.putConstraint(layout.NORTH, txtDataJack1, 5, layout.SOUTH, txtLname);
layout.putConstraint(layout.WEST, lblPhoneJack1, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblPhoneJack1, 1, layout.NORTH, txtPhoneJack1);
layout.putConstraint(layout.WEST, txtDataJack2, 5, layout.EAST, lblDataJack2);
layout.putConstraint(layout.NORTH, txtDataJack2, 5, layout.SOUTH, txtDataJack1);
layout.putConstraint(layout.WEST, lblPhoneJack2, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblPhoneJack2, 1, layout.NORTH, txtPhoneJack2);
layout.putConstraint(layout.WEST, lblDataJack1, 0, layout.WEST, lblJackType);
layout.putConstraint(layout.NORTH, lblDataJack1, 1, layout.NORTH, txtDataJack1);
layout.putConstraint(layout.WEST, lblDataJack2, 0, layout.WEST, lblDataJack1);
layout.putConstraint(layout.NORTH, lblDataJack2, 1, layout.NORTH, txtDataJack2);
layout.putConstraint(layout.WEST, lblComments, 5, layout.WEST, pnlTop);
layout.putConstraint(layout.NORTH, lblComments, 1, layout.NORTH, txtComments);
layout.putConstraint(layout.EAST, pnlTop, 5, layout.EAST, txtDataJack2);
layout.putConstraint(layout.SOUTH, pnlTop, 5, layout.SOUTH, txtComments);
//end top part
//Middle part of the main panel
//Buttons and options
pnlMid.setLayout(layout);
lblRecords.setText("0/MaxRecords");
lblRecords.setHorizontalAlignment(JLabel.CENTER);
lblRecords.setPreferredSize(new Dimension(82, 20));
btnSearch.setText("Search");
btnSearch.setPreferredSize(new Dimension(75, 22));
btnSearch.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnEditSave.setText("Edit");
btnEditSave.setPreferredSize(new Dimension(75, 22));
btnEditSave.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnPrevRecord.setText("<<");
btnPrevRecord.setPreferredSize(new Dimension(50, 22));
btnPrevRecord.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
btnNextRecord.setText(">>");
btnNextRecord.setPreferredSize(new Dimension(50, 22));
btnNextRecord.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
pnlMid.add(btnSearch);
pnlMid.add(btnEditSave);
pnlMid.add(btnPrevRecord);
pnlMid.add(btnNextRecord);
pnlMid.add(lblRecords);
layout.putConstraint(layout.WEST, lblRecords, 12, layout.WEST, btnPrevRecord);
layout.putConstraint(layout.NORTH, lblRecords, 0, layout.NORTH, pnlMid);
layout.putConstraint(layout.WEST, btnSearch, 5, layout.WEST, pnlMid);
layout.putConstraint(layout.NORTH, btnSearch, 5, layout.SOUTH, lblRecords);
layout.putConstraint(layout.WEST, btnEditSave, 5, layout.EAST, btnSearch);
layout.putConstraint(layout.NORTH, btnEditSave, 5, layout.SOUTH, lblRecords);
layout.putConstraint(layout.EAST, btnNextRecord, -5, layout.EAST, pnlMid);
layout.putConstraint(layout.NORTH, btnNextRecord, 5, layout.SOUTH, lblRecords);
layout.putConstraint(layout.EAST, btnPrevRecord, -5, layout.WEST, btnNextRecord);
layout.putConstraint(layout.NORTH, btnPrevRecord, 5, layout.SOUTH, lblRecords);
layout.putConstraint(layout.EAST, pnlMid, 0, layout.EAST, pnlTop);
layout.putConstraint(layout.SOUTH, pnlMid, 5, layout.SOUTH, btnNextRecord);
//end middle part
//add the objects to the panels
pnlMainCenter.add(pnlTop);
pnlMainCenter.add(pnlMid);
//add the panels to the frame
getContentPane().add(pnlMainCenter, BorderLayout.CENTER);
//set frame properties
setTitle("Test");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
setLocation(300,300);
pack();
}
private JPanel pnlMainCenter = new JPanel();
private JPanel pnlMid = new JPanel();
private JPanel pnlTop = new JPanel();
private JLabel lblClosetLoc = new JLabel();
private JLabel lblPhone1 = new JLabel();
private JLabel lblJackPaired = new JLabel();
private JLabel lblPhone2 = new JLabel();
private JLabel lblCubicle = new JLabel();
private JLabel lblJackType = new JLabel();
private JLabel lblName = new JLabel();
private JLabel lblPhoneJack1 = new JLabel();
private JLabel lblPhoneJack2 = new JLabel();
private JLabel lblDataJack1 = new JLabel();
private JLabel lblDataJack2 = new JLabel();
private JLabel lblComments = new JLabel();
private JLabel lblRecords = new JLabel();
private JTextField txtClosetLoc = new JTextField(5);
private JTextField txtPhone1 = new JTextField(5);
private JTextField txtJackPaired = new JTextField(5);
private JTextField txtPhone2 = new JTextField(5);
private JTextField txtCubicle = new JTextField(10);
private JTextField txtJackType = new JTextField(5);
private JTextField txtFname = new JTextField(9);
private JTextField txtLname = new JTextField(9);
private JTextField txtPhoneJack1 = new JTextField(6);
private JTextField txtPhoneJack2 = new JTextField(6);
private JTextField txtDataJack1 = new JTextField(6);
private JTextField txtDataJack2 = new JTextField(6);
private JTextField txtComments = new JTextField(15);
private JButton btnSearch = new JButton();
private JButton btnEditSave = new JButton();
private JButton btnPrevRecord = new JButton();
private JButton btnNextRecord = new JButton();
}